Suppressors on Piston operated actions...?

Rembrandt · November 26, 2016, 11:59 AM

Have a couple of piston operated AR's, one is a rifle and the other is a pistol. Currently waiting on stamp approvals and wondering if there are mechanical issues that may occur?

TMD · November 26, 2016, 07:17 PM

Nope. I've mounted my AAC SDN-6 on both my Ruger SR556 and SR762. Both tan just fine. I will say though, if your piston setup has a setting for suppressed use it. They create a lot of back pressure. If yours don't have this setting it will more than likely be over gassed.

Mobuck · November 26, 2016, 09:43 PM

I'll say the piston uppers aren't as "clean" as I'd expected(hoped for). There's still some blowback but not nearly as much as the DI operation. My new Adams Arms 16" middy piston upper works well muffled with the knob set in the suggested suppressor position.

November 26, 2016, 11:59 AM	#1
Rembrandt Senior Member Join Date: August 10, 2002 Posts: 2,108	Suppressors on Piston operated actions...? Have a couple of piston operated AR's, one is a rifle and the other is a pistol. Currently waiting on stamp approvals and wondering if there are mechanical issues that may occur?

November 26, 2016, 07:17 PM	#2
TMD Senior Member Join Date: August 9, 2011 Posts: 1,293	Nope. I've mounted my AAC SDN-6 on both my Ruger SR556 and SR762. Both tan just fine. I will say though, if your piston setup has a setting for suppressed use it. They create a lot of back pressure. If yours don't have this setting it will more than likely be over gassed.

November 26, 2016, 09:43 PM	#3
Mobuck Junior member Join Date: February 2, 2010 Posts: 6,846	I'll say the piston uppers aren't as "clean" as I'd expected(hoped for). There's still some blowback but not nearly as much as the DI operation. My new Adams Arms 16" middy piston upper works well muffled with the knob set in the suggested suppressor position.